Oxygen downshift experiment with E.coli W3110

Dynamical response to oxygen downshift under fermentation conditions was tested by taking sample before (S1) and after (S2, S3 and S4) the oxygen downshift. The dynamical changes relevant for ongoing research on physiology were applied. Four microarray chips were analyzed: S1 was taken 15 min before the oxygen downshift S2, S3 and S4 were taken 15 min, 45 min and 75 min after the oxygen downshift, respectively